3M 7100103089 Diamond Lapping Film Disc 12 Inch Psa

Product Description

The 3M 7100103089 is a 12-inch diameter PSA-backed diamond lapping film disc engineered for precision surface finishing on extremely hard materials. Built on the 668X platform, it uses precisely graded diamond particles coated onto a dimensionally stable polyester film substrate. The pressure-sensitive adhesive backing allows fast, tool-free mounting to disc platens. Designed for flat, consistent material removal, this disc delivers a uniform, repeatable finish across production and repair applications where surface geometry and edge integrity are critical. Technicians working with ceramics, carbides, optical components, and similar hard substrates rely on this disc for controlled, measurable results.

This diamond lapping film disc is suited for precision grinding and finishing operations in industrial, optical, and tooling environments. It is used on rotary lapping machines and flat platen systems where consistent stock removal and low edge rounding are required. The disc format is appropriate for benchtop finishing stations and production-line lapping setups. Grades ranging from 0.10 to 30.0 micron cover roughing through final-polish stages on materials that defeat conventional abrasives.

Key Features

• PSA backing for fast, tool-free mounting to disc platens
• Precisely graded diamond abrasive particles for repeatable, uniform finish
• Flat surface removal with low edge rounding for geometry-critical parts
• Fast cut rate increases throughput and reduces cycle time
• Long abrasive life reduces disc change frequency in production settings
• Available across a wide micron range from 0.10 to 30.0 micron

Compatibility

Designed for use on rotary and flat platen lapping machines that accept 12-inch PSA-backed abrasive discs. Suitable for finishing ceramics, carbides, hardened metals, optical substrates, and other extremely hard materials.

Installation Notes

Mount to a clean, flat platen surface free of dust, oil, and debris before applying the PSA-backed disc. Ensure the platen is stationary before pressing the disc into place to prevent misalignment. Follow equipment manufacturer guidelines for platen speed and applied pressure appropriate to the workpiece material and selected micron grade. Inspect the disc for loading or wear and replace when cut rate or finish quality degrades.

Technical Specifications

• Diameter: 12 inches
• Abrasive Type: Diamond
• Backing Material: Polyester film
• Attachment Type: PSA (pressure-sensitive adhesive)
• Micron Grade Range: 0.10 to 30.0 micron
• Package Weight: 0.06 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100103089